From 3c5772a5279de9eadfff7adb5ddea08106495fff Mon Sep 17 00:00:00 2001 From: Javier Cardona Date: Mon, 10 Aug 2009 12:15:48 -0700 Subject: mac80211: Use 3-address format for mesh broadcast frames. The 11s task group recently changed the frame mesh multicast/broadcast frame format to use 3-address. This was done to avoid interactions with widely deployed lazy-WDS access points. This patch changes the format of group addressed frames, both mesh-originated and proxied, to use the data format defined in draft D2.08 and forward. The address fields used for group addressed frames is: In 802.11 header ToDS:0 FromDS:1 addr1: DA (broadcast/multicast address) addr2: TA addr3: Mesh SA In address extension header: addr4: SA (only present if frame was proxied) Note that this change breaks backward compatibility with earlier mesh stack versions. Signed-off-by: Andrey Yurovsky Signed-off-by: Javier Cardona Signed-off-by: John W. Linville --- net/mac80211/mesh.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'net/mac80211/mesh.h') diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h index 6aaf1ecbcb6..2ebd74cb038 100644 --- a/net/mac80211/mesh.h +++ b/net/mac80211/mesh.h @@ -193,8 +193,11 @@ struct mesh_rmc { /* Public interfaces */ /* Various */ +int ieee80211_fill_mesh_addresses(struct ieee80211_hdr *hdr, __le16 *fc, + char *da, char *sa); int ieee80211_new_mesh_header(struct ieee80211s_hdr *meshhdr, - struct ieee80211_sub_if_data *sdata); + struct ieee80211_sub_if_data *sdata, char *addr4, + char *addr5, char *addr6); int mesh_rmc_check(u8 *addr, struct ieee80211s_hdr *mesh_hdr, struct ieee80211_sub_if_data *sdata); bool mesh_matches_local(struct ieee802_11_elems *ie, -- cgit v1.2.2